Try www.JewishEncyclopedia.com
This website contains the complete contents of the 12-volume Jewish
Encyclopedia, which was originally published between 1901-1906. The Jewish
Encyclopedia, which recently became part of the public domain, contains
over 15,000 articles and illustrations.
Although it dates >from 1906, it is a great snapshot of pre-war life in
Eastern Europe.
Harvey Kaplan
Glasgow, Scotland